phase 17: fix SEC EDGAR 403 — use descriptive User-Agent with contact email per fair access policy

services/parser/worker.py

@@ -45,9 +45,14 @@ async def fetch_html(url: str) -> Optional[str]:
     """Fetch article HTML for scraping."""
     if not url:
         return None
+    # SEC EDGAR requires a descriptive User-Agent with contact email per fair access policy
+    if "sec.gov" in url:
+        ua = "StonksOracle/1.0 (stonks-oracle-bot; contact@celestium.life)"
+    else:
+        ua = "StonksOracle/1.0"
     async with httpx.AsyncClient(timeout=30, follow_redirects=True) as client:
         try:
-            resp = await client.get(url, headers={"User-Agent": "StonksOracle/1.0"})
+            resp = await client.get(url, headers={"User-Agent": ua, "Accept-Encoding": "gzip, deflate"})
             resp.raise_for_status()
             return resp.text
         except Exception as e: